210000111001220 has 48 divisors (see below), whose sum is σ = 446808181881600. Its totient is φ = 82894843050240.

The previous prime is 210000111001211. The next prime is 210000111001229. The reversal of 210000111001220 is 22100111000012.

It is an interprime number because it is at equal distance from previous prime (210000111001211) and next prime (210000111001229).

It is not an unprimeable number, because it can be changed into a prime (210000111001229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30453641 + ... + 36707280.

It is an arithmetic number, because the mean of its divisors is an integer number (9308503789200).

Almost surely, 2^{210000111001220} is an apocalyptic number.

210000111001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210000111001220 is an abundant number, since it is smaller than the sum of its proper divisors (236808070880380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210000111001220 is a wasteful number, since it uses less digits than its factorization.

210000111001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67162988 (or 67162986 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210000111001220 its reverse (22100111000012), we get a palindrome (232100222001232).

The spelling of 210000111001220 in words is "two hundred ten trillion, one hundred eleven million, one thousand, two hundred twenty".